body {

}
#all {
	width: 600px;
	margin: 0 auto;
}
#header {
	border: 2px solid black;
	background-color: #426B9C;
	height: 100px;
	text-align: center;	
}
#content {
	min-height: 500px;
	padding: 20px;
	margin: 10px;
	border: 2px solid black;
}
#footer {
	border: 2px solid black;
	background-color: #426B9C;
	text-align: center;	
}